Merge pull request #95 from MichaelCurrin/fix-git-root-uri-not-absolute-for-windows

fix: Git root URI should not be absolute for Windows

Author: MichaelCurrin

docs/development/advanced/debugging.md

@@ -0,0 +1,31 @@
+# Debugging
+> How to deal with errors in the extension
+
+## Test shell commands
+
+This snippet of code can be used to for testing that a basic command works without error and output can be shown.
+
+```typescript
+/**
+ * Debug tool for checking that a basic command works.
+ * Replace the `makeAndFillCommitMsg` call with `test` to use this.
+ */
+async function _test(repository: Repository) {
+  vscode.window.showInformationMessage("Testing")
+
+  let cwd = repository.rootUri.fsPath;
+
+  vscode.window.showInformationMessage(cwd)
+
+  const resp = await _execute(cwd, 'git --version')
+  vscode.window.showInformationMessage(`${resp.stdout} -- ${resp.stderr}`)
+}
+```
+
+### Background
+
+This was prompted by issue [#93](https://github.com/MichaelCurrin/auto-commit-msg/issues/93) on Windows.
+
+The output in the debug mode did not work because the shell command failed to spawn at all using `exec()` in Node. 
+
+The `cwd` value was incorrect from the existing logs which I didn't notice initially but using the test above made it clear. 

src/git/cli.ts

@@ -36,7 +36,7 @@ async function _diffIndex(
   repository: Repository,
   options: string[] = []
 ): Promise<Array<string>> {
-  const cwd = repository.rootUri.path;
+  const cwd = repository.rootUri.fsPath;
   const cmd = "diff-index";
   const fullOptions = [
     "--name-status",